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Control Systems: Applications01:25

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...

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Modulating and driving system for the application of microelectromechanical system infrared source array.

Guo Tao1, Guan Xin-Feng, Chou Xiu-Jian

  • 1National Key Laboratory for Electronic Measurement Technology, Taiyuan, China.

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A novel driving and modulation system for microelectromechanical system (MEMS) infrared (IR) source arrays offers high power and precision. This advancement enhances the engineering value of MEMS IR sources through improved control.

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Area of Science:

  • * Electrical Engineering
  • * Materials Science
  • * Optoelectronics

Background:

  • * Developing efficient driving and modulation circuits for microelectromechanical system (MEMS) infrared (IR) source arrays remains a significant challenge.
  • * Existing systems often struggle to meet requirements for high driving power, output efficiency, voltage precision, and frequency modulation.

Purpose of the Study:

  • * To propose and demonstrate a novel driving and modulation system for MEMS IR source arrays.
  • * To achieve high driving power, high output efficiency, precise voltage control, voltage compensation, and deep frequency modulation.

Main Methods:

  • * Utilized a linear DC steady voltage integrated circuit (ADP3336) for direct driving of the MEMS IR source array.
  • * Implemented a programmable compensation module to ensure precise radiation peak wavelength.
  • * Employed a Field-Programmable Gate Array (FPGA) as the control core for modulating driving pulse frequency and width, enabling array coding patterns.

Main Results:

  • * The proposed system successfully meets the demanding requirements for driving and modulating MEMS IR source arrays.
  • * Demonstrated precise control over radiation peak wavelength and array coding patterns through frequency and pulse width modulation.
  • * Achieved high driving power and output efficiency, enhancing system performance.

Conclusions:

  • * The developed driving and modulation system offers a viable solution for advancing MEMS IR source array technology.
  • * The integration of ADP3336 and FPGA provides precise control and efficient operation.
  • * This advancement significantly increases the engineering value and application potential of MEMS IR sources.